Punch-press.



a @WOW 5? .PATENTED 00T. 9, 1906. A. GOON.

PUNCH PRESS.

APPLICATION FILED FEB. 23, 1906.

2 SHEETS-SHEET 1.

N0. 833,123. PATENTED OCT. 9, 1906'.

A. COON.

PUNCH PRESS. APPLIGATION PILBDPBB. 23. 1906.

2 SHEETS-SHEET 2.

1HE NoRRls PETEF: cv., wAsHlNcmN, D. c

UNITED STATES. PATENT OFFICE.

ABRAHAM COON, OF GLENWOOD, IDAHO, ASSIGNOR OF ONE-HALF TO ROBERT KIRKLAND, OF GLENW OOD, IDAHO.

PUNCH-PRESS.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed February 23, 1906. Serial No. 302,595.

Beit known that I, ABRAHAM CooN, a citi- Zen o'f the United States, residing at Glenwood, in the county of Idaho and State of Idaho, have invented certain new and useful Improvements in Punch-Presses; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to punch-presses, and has for an object to provide a press ofthe class embodying new and improved features of convenience, strength, durability, and efficiency.

A further object of the invention is to provide a punch-press embodying improved means of applying power for actuating the punch-spindle.

Afurther object of the invention is to provide a punch-press with a punch-dial having improved means for raising and lowering.

With these and other objects in view the invention comprises certain novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of the improved punchpress. Fig. 2 is 'a transverse sectional view taken immediately above the power-applying lever. Fig. 3 is a transverse sectional view taken immediately above the punchdisk. Fig. 4 is a transverse sectional view taken immediately below the punching-disk. Fig. 5 is a transverse vertical section through the punch-dial and operating means. Fig. 6 is a vertical diametric view through the punch-chuck.

Like characters of reference designate corresponding parts throughout the several views.

In its preferred embodiment the punchpress forming the subject-matter of this ap plication comprises a frame composed of spaced ,vertical side pieces 1() erected upon any suitable base 11 and connected at their upper ends by the cross-piece 12 and with the cross-piece 13 intermediate their ends and serving to space the said side pieces. The cross-pieces 10 and the intermediate crosspieces 13 are provided with registering apertures, within which is slidably mounted the vertical punch-spindle 14, provided at its lower end, below the cross-piece 13, with a screw-threaded socket 15, proportioned to receive the larger end of the punch, as 16, and with a tapered screw-threaded chuck member 17, arranged to engage the screw-threads of the spindle and retain the punch in operative position.

For operating the spindle, lugs 18 and 19 are secured to the opposite sides thereof above the cross-piece 13, and thereto are pivoted the toggle-levers 20 and 21, as by the pivot-pins 22 and 23. To the upper cross-piece 12 are secured blocks24 and 25 in any approved manner, as by extending through the said cross-piece adjacent the spindle and being secured by pins 26 and 27. To the said blocks 24 and 25 are pivoted the toggle-levers 26 and 27, as by the pins 2S and .29,with their opposite ends in operative engagement with and pivoted to the free ends of the togglelevers 2O and 21, as by the pins 3() and 31.

Between the frame-pieces 10, upon one side,is fulcrumed the lever 32,b1furcated by means of the slot 33 to embrace the toggles and the punch-spindle and fulcrumed by means of the pin 34, extending through the said pieces 10. To the lever 32, adjacent its fulcrum, is rigidly secured the cross-head 35, with the fulcrum-pin 34 extending through its middle point and having the links 36 and 37 pivotedfrespectively, to its lower and upper ends, as by the pins 33 and 39. At their ends opposite the pins 33 and 39 the links 36 and 37 are respectively pivoted to the pins 3() and 31, forming the hinge-joints of the toggles.

Upon the base 11 and between the side pieces l() is slidably disposed a tapered block 40, provided with a slot 41, through which extends the vertical post 42, seated at its lower end in the base 11 and at its upper' end in the cross-piece 13"and secured in any approved manner. The tapered block 40 is provided at one end with a handle 42, extending beyond the lines of the parts. Upon the tapered portion of the block 4() is disposed a Wedge-shaped block 43, provided with an opening embracing the post 42, which permits the wedge 43 to move vertically thereon, but prevents movement laterally of the said post. The wedge 43 is provided with a tongue 44, proportioned to fit and disposed within the IOO slot 41, and with a notch 45, formed in its IIO Upon the wedge 43 is disposed the punchdial 46, having a central opening engaged upon the post 42, which permits the dial to move longitudinally and rotatably upon the said post. The dial 46 is provided with a plurality of openings 47, arranged upon a circle concentric with the post 42 and positioned and proportioned to engage upon a pintle 48, rigidly upstanding from the base, to hold the said dial against rotary displacement. The dial is provided with a circular series of punch-holes 49, preferably varying regular in size to conform to the various -sizes of punches common in use, and the said holes positioned over the notch 45 and slot 41 and in alinement with' and to accommodate the punch 16.

In operation the object to be punched is placed upon the dial 46 in a position for punching immediately beneath the punch 16 and above the hole 49, corresponding in size to the hole to be produced. The tapered block 40 is then drawn outwardly by means of a handle 42, thereby raising the dial until the Work is brought into engagement with the lower end of the punch, the lever 32 meantime being raised to its upward limit, which expands the toggle and raises the punch-spindle. When the work has been properly positioned, the lever 82 is depressed and the punch 16 forced through the work in thel well-known manner. If the thickness of the work is such that the very limited movement of the punch does not complete the punching at one depression of the lever, the lever is again raised and the tapered block 4() drawn farther out to raise the dial, so that the work is again in position to receive the force of the descending punch.

The toggles operate in the usual and wellknown manner from the cross-head 35, the links 86 and 37 being pivoted at'their opposite ends to the said cross-head and toggles to force the toggles together and into juxtaposition with the spindle to produce the punching effect.

1. In a punch-press, a frame, a spindle mounted to reciprocate in the frame, toggles pivoted one end to the frame and the other end to the spindle, a lever fulcrumed to the frame and arranged to operate the toggle, a punch removably secured to the end of the spindle, a punch-dial, and means to move the dial vertically.

2. lIn a punch-press, a frame comprising spaced side pieces, a spindle mounted to reciprocate in said frame, toggles pivoted one end to the frame, and the other end to the spindle, a lever fulcrumed between the side pieces of the frame and arranged to operate the toggle, a punch removably secured to the end of the spindle, a punch-dial, and means to move the dial vertically.

3. In a punch-press, a frame, a verticallyreciprocating spindle slidably mounted in the frame, toggles pivoted one end to the frame and the other end to the spindle, a lever fulcrumed to the 'frame and arranged to operate the toggles, a punch removably secured to the end of the spindle, a punch-dial, and means to move the dial vertically.

4. In a punch-press, a frame, a verticallyreciprocating spindle slidably mounted in the frame, toggles pivoted at their upper ends to the frame, and at their lower ends to the spindle, `a lever fulcrumed to the frame and arranged to operate the toggle, 'a punch removably secured to the lower end of the spindle, a punch-dial, and means to move the dial vertically.

5. In a punch-press, a frame, a reciprocating spindle mounted in the frame, toggles pivoted one end to the frame, and the other end to the spindle, a lever fulcrumed to the frame and provided with a cross-head, links connecting the cross-head and toggle, a punch removably secured to the lower end of the spindle, a punch-dial provided with punchholes positioned to receive the punch, and means to move the dial vertically.

6. In a punch-press, a frame, a punchspindle vertically slidable in the frame, means to operate the spindle, a punch-dial provided with punch-holes positioned to receive the punch, a wedge supporting the dial, and a tapered, handled block beneath and supporting the wedge.

7. In a punch-press, a frame, a reciprocating spindle mounted in said frame, toggles pivoted one end to the frame and the other end to the spindle, a lever fulcrumed to the frame and arranged to operate the toggle, a punch removably secured to the lower end of the spindle, a punch-dial provided with punch-holes positioned to receive the punch,

a wedge supporting the dial, and a tapered sliding block beneath and supporting the wedge.

8. A punch-press comprising a frame, embodying spaced side pieces, a vertically-reciprocating spindle slidably mounted in the frame, toggles pivoted at their upper ends to the frame, and at their lower ends to the spindle, a lever fulcrumed between the spaced side pieces and provided with a cross-head arranged to operate the toggles, links connecting the cross-head and toggles, a screwthreaded sleeve arranged to secure a punch removably to the lower end of the spindle, a punch-dial provided with punch-holes positioned to receive the punch, and a tapered slliding block beneath and supporting the c ial.

In testimony whereof I aflix my signature in presence of two witnesses.

ABRAHAM COON.

Witnesses:

C. J. JOHNSON, JAMEs M. SHAW.

IOO

IIO 

